GSA Annual Meeting, November 5-8, 2001

Paper No. 0
Presentation Time: 1:30 PM-5:30 PM

GENETICAL CLASSIFICATION OF INDUSTRIAL MINERALS AND ROCKS OF ALBANIA


SERJANI, Afat and LEKA, Gjovalin, Geological Institute, Blloku Vasil Shanto, Tirana, Albania, aserjani@yahoo.com

During Late Hercynian and Alpine Metallogenic Epochs in Albania there are formed mineralizations of endogene, metamorphogene and exogene origins:

I.1. Industrial minerals and rocks of sedimentary origin: a) Biochemical: Limestones cover 6600 km2 of total surface of Albania. More than 60 million ton poor phosphorites related to carbonate globotruncanic sequence of Coniacian representing deep sea environment of sedimentation, Uranium-bearing phosphate occurrences of Jurassic, Upper Triassic Dolomite rocks up to 1200m thick, and Tripoli deposits are prospected in Ionian zone; b) Chemical minerals and rocks: Permo-Triassic salt deposits and gypsum-anhydrite rocks up to 1000m thick outcrop in Ionian and Korabi zones, while in Pre-Andriatic Depression there are formed Mesinian sequences; c) Raw materials of sedimentary-mechanical origin: In Albania there are prospected clay deposits of marine, continental lake and fluvial origin, quartzeous sandstones, rivers and buried placers. 150 million ton bituminous sandstones are accounted.

I.2. Industrial minerals and rocks of magmatic origin: a) Related to ophiolite complex sequences: About 100 million ton of Forsterite Olivine formed as result of primary crystalline process are prospected in Kukesi and Tropoja massifs. Volcanic glasses of the intermediate-acid composition are related to the basalt-dacitic complex of Central Mirdita. Hydrothermal magnesite, Asbestos, Talc, and Serpentinites are prospected as well; b) Belonging to the subalcaline rocky sequences: There are prospected Albitophyre deposits in Korabi, Gashi, Mirdita zones, while Potassium Tuffs in Pre-Adriatic depression. Kaolin is formed in leucogabros of western Ophiolites; c) Hydrothermal mineralisations of Ceolite, Fluorite, Barite, Native Sulfur and Quartz are found in Northern Albania.

I.3. Metamorphic rocks. In Albania are discovered some deposits of Quartzite, Marbles, Pyrophilites, Graphitic schist and Phylloides formed by regional metamorphism processes.